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PHP Fatal error: Cannot redeclare class
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It means you've already created a class.
For instance:
class Foo {}
// some code here
class Foo {}
That second Foo would throw the error.
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How to implement the Java comparable interface?
... null object as opposed to equals() which return false on such scenario.
Read more: http://javarevisited.blogspot.com/2011/11/how-to-override-compareto-method-in.html#ixzz4B4EMGha3
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Use of 'prototype' vs. 'this' in JavaScript?
...ets that __proto__ property to point to the function's prototype property. Read that again. It's basically this:
a1.__proto__ = A.prototype;
We said that A.prototype is nothing more than an empty object (unless we change it to something else before defining a1). So now basically a1.__proto__ poin...
How to remove all the null elements inside a generic list in one go?
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This should be avoided if parameterList is already a List, as it will unnecessarily create a new copy. In that case use the RemoveAll method as others suggest.
– Nick
Jun 30 '16 at 17:36
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PostgreSQL: Which Datatype should be used for Currency?
...would say so in the manual - which it doesn't.
For a more official source, read this thread in pgsql-general (from just this week!), with statements from core developers including D'Arcy J.M. Cain (original author of the money type) and Tom Lane:
Related answer (and comments!) about improvements in ...
What's the opposite of head? I want all but the first N lines of a file
Given a text file of unknown length, how can I read, for example all but the first 2 lines of the file? I know tail will give me the last N lines, but I don't know what N is ahead of time.
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do you have kcachegrind like profiling tools for mac [closed]
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Webgrind runs in PHP and can read the cachegrind output of XDebug. It currently doesn't offer all the functionality of KCacheGrind, but it is super simple to install, and seems to have renewed activity.
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Find the similarity metric between two strings
...s). It's a convenience function that may be what you are looking for, AKA read the docs! In my particular application I was doing some basic error checking / reporting to the user providing bad input, and this answer allows me to report to them the potential matches and what the "similarity" was. ...
How to apply a patch generated with git format-patch?
...at the commit messages contain a “Signed-off-by” tag. This tag will be read by Github and others to provide useful info about how the commit ended up in the code.
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How to round up a number in Javascript?
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@Krtek ooops, Thanks for catching that. I mis-read the question. Answer updated.
– Shad
Mar 4 '11 at 7:59
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